Chemical knowledge-informed framework for privacy-aware retrosynthesis learning

• URL: http://arxiv.org/abs/2502.19119v1
• Date: Wed, 26 Feb 2025 13:13:24 GMT
• Title: Chemical knowledge-informed framework for privacy-aware retrosynthesis learning
• Authors: Guikun Chen, Xu Zhang, Yi Yang, Wenguan Wang,
• Abstract summary: Current machine learning-based retrosynthesis gathers reaction data from multiple sources into one single edge to train prediction models.<n>This paradigm poses considerable privacy risks as it necessitates broad data availability across organizational boundaries.<n>In the present study, we introduce the chemical knowledge-informed framework (CKIF), a privacy-preserving approach for learning retrosynthesis models.
• Score: 60.93245342663455
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Chemical reaction data is a pivotal asset, driving advances in competitive fields such as pharmaceuticals, materials science, and industrial chemistry. Its proprietary nature renders it sensitive, as it often includes confidential insights and competitive advantages organizations strive to protect. However, in contrast to this need for confidentiality, the current standard training paradigm for machine learning-based retrosynthesis gathers reaction data from multiple sources into one single edge to train prediction models. This paradigm poses considerable privacy risks as it necessitates broad data availability across organizational boundaries and frequent data transmission between entities, potentially exposing proprietary information to unauthorized access or interception during storage and transfer. In the present study, we introduce the chemical knowledge-informed framework (CKIF), a privacy-preserving approach for learning retrosynthesis models. CKIF enables distributed training across multiple chemical organizations without compromising the confidentiality of proprietary reaction data. Instead of gathering raw reaction data, CKIF learns retrosynthesis models through iterative, chemical knowledge-informed aggregation of model parameters. In particular, the chemical properties of predicted reactants are leveraged to quantitatively assess the observable behaviors of individual models, which in turn determines the adaptive weights used for model aggregation. On a variety of reaction datasets, CKIF outperforms several strong baselines by a clear margin (e.g., ~20% performance improvement over FedAvg on USPTO-50K), showing its feasibility and superiority to stimulate further research on privacy-preserving retrosynthesis.

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